US-24 — Process hygiene UI:
- New .claude/agents/design-reviewer.md (model: opus, read-only) — visual + design-system reviewer that runs after frontend-builder and before code-reviewer. Audits alignment, DESIGN.md tokens, light/dark consistency, typo hierarchy, whitespace rhythm, responsive sanity at 1280x720, button convention, V1 a11y. Output format mirrors code-reviewer.
- Updated .claude/agents/frontend-builder.md DoD: screenshots are MANDATORY (one per feature/state introduced or modified, light+dark when theming is in scope). Hard block on "Dev server not started" — must be flagged explicitly. Screenshots feed the design-reviewer step.
US-25 — PR helper:
- scripts/open-pr.sh wraps `POST /api/v1/repos/{owner}/{repo}/pulls`. Detects host/owner/repo from `git remote get-url origin`, reads basic-auth credentials from `~/.git-credentials` (same source as `git push`, no token in env), uses jq to compose the multiline-safe payload. Validates args, prints PR URL on success, exits non-zero with the server message on failure.
- Makefile target `open-pr TITLE="..." BODY=path/to/body.md [BASE=main]` wraps the script with the same arg validation.
- README.md "Make targets" table extended.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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